Diff: dsp/Sine_f32.h

Revision:

1:fdd22bb7aa52

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dsp/Sine_f32.h	Wed Nov 28 12:30:09 2012 +0000
@@ -0,0 +1,48 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef SINE_F32_H
+#define SINE_F32_H 
+
+#include <stdint.h>
+#include "arm_math.h"
+
+namespace dsp {
+
+class Sine_f32 {
+public:
+    Sine_f32(uint32_t frequency, uint32_t sample_rate=48000, float32_t amplitude=1.f, float32_t phase=0.0, uint32_t block_size=32);
+    
+    void process(float32_t *sgn_in, float32_t *sgn_out);
+    
+    void generate(float32_t *sgn);
+    
+    void reset(void);
+
+private:
+    float32_t _dx;
+    float32_t _amplitude;
+    float32_t _x;
+    uint32_t _block_size;
+};
+
+}
+#endif